Wexxar BEL 270 V.02 Installation and operating instructions

65-07-6 3/6/2007
OPERATION & SERVICE MANUAL 65-07-6
BEL 270 V.02
FULLY AUTOMATIC
HOT MELT GLUE CASE SEALER
Wexxar Packaging Inc.
Phone (604) 270-0811 • Fax (604) 270-7897

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 2
65-07-6 3/6/2007
SAFETY CAUTION!
Make sure the machine is disconnected from the air and power supplies before
undertaking any maintenance or service procedures.
Only one person at a time should adjust the machine.
Only qualified personnel must operate machine.
Be aware of the following machine characteristics:
- When the machine is connected to an air supply and first turned on, the Snap Folders will cycle once
and the compression press may cycle once. Be sure all personnel are clear of the machine when
starting.
- If the machine is running, activating the left hand limit switch at the infeed entrance will cause the
Snap Folders to cycle and the right hand limit switch at the entrance will cause the indexing stop
gate to operate.
- When the machine is running, activation of the limit switches mounted on the side belt conveyor
cover or the bottom roller conveyor at the center of the machine will cause hot glue to be dispensed
and can cause severe burns.
NEVER REACH INTO THE MACHINE WHILE IT IS RUNNING
For additional copies of this manual, parts, service or other information contact:
Phone (604) 270-0811 • Fax (604) 270-7897

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 3
65-07-6 3/6/2007
TABLE OF CONTENTS
INSTALLING THE BEL 270 ................................................................................................................ 4
Unpacking the Machine ..........................................................................................................................................................4
Leveling the Machine ..............................................................................................................................................................4
Power Connections ..................................................................................................................................................................4
Electrical Power ..................................................................................................................................................................4
Air Supply............................................................................................................................................................................4
Machine Adjustments..............................................................................................................................................................5
Adjusting for Box Width....................................................................................................................................................6
Adjusting for Box Height ...................................................................................................................................................6
Adjusting the Front Minor Flap Center Ski.....................................................................................................................7
Adjusting the Hot Melt Glue Unit .....................................................................................................................................7
Adjusting the Glue Pattern Control..................................................................................................................................7
OPERATING THE MACHINE ............................................................................................................ 9
Starting the Machine..........................................................................................................................................................9
Feeding Cases to the Machine .........................................................................................................................................10
Automatic Stop Gate........................................................................................................................................................10
SERVICE AND MAINTENANCE PROCEDURES ......................................................................... 11
Uni -Drive Side Belt Drive System ..................................................................................................................................11
Chain Drive Maintenance................................................................................................................................................11
Gear Reducer Maintenance.............................................................................................................................................12
Side Belt System ...............................................................................................................................................................13
Snap Folder Adjustment ..................................................................................................................................................14
TROUBLE SHOOTING GUIDE ........................................................................................................ 15
Section 1 - Corrugated Case Quality & Specifications .................................................................................................15
Section 2 - Case Drive Belt System .................................................................................................................................16
Section 3 - Top Flap Folding ...........................................................................................................................................18
Section 4 - Case Infeed and Indexing..............................................................................................................................20
TECHNICAL REFERENCE INFORMATION: PLEASE SEE PUBLICATION 66-07

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 4
65-07-6 3/6/2007
INSTALLING THE BEL 270
UNPACKING THE MACHINE
Remove the lag screws that secure each leg to the pallet base. Lift machine off the shipping pallet and move to
work location. (Always use wood dunnage blocks under the lower frame when using a forklift to move the
machine from the shipping pallet or to re-position it on the floor.)
LEVELING THE MACHINE
The machine should be installed level to avoid frame stress and to ensure optimum performance. If the floor is
uneven, we recommend that the machine be equipped with an optional adjustable leg leveling kit. The machine
should be anchored to the floor with at least 1/2-inch Dia lag bolts or to adjoining equipment to prevent any
movement of the machine by reactive forces that may occur as sealed cases are being driven through the machine
outfeed.
POWER CONNECTIONS
ELECTRICAL POWER
The standard BEL 270 is equipped with a single-phase 220V AC power supply to NEMA 12 specifications. A
1/2 HP TEFC motor (drawing 8A) powers the drive system. Other voltages and three-phase power options
may be supplied by special order.
A dedicated electrical circuit is recommended for this machine. If any electrical connections are required to
install this machine, they MUST be handled by an electrician qualified in your area.
AIR SUPPLY
The BEL 270 requires a clean, dry air supply with a constant pressure of 80 P.S.I. The volume of air required
for the BEL 270 is 0.2 C.F./cycle at 80 P.S.I., (6 Bar). The incoming air supply line must be at least a ½” ID
to provide an adequate amount of air without pressure drops when the machine is cycling.
One of the most common causes of inconsistent machine performance is inadequate air supply; therefore, the
foregoing requirements must be carefully observed to assure satisfactory operation.
CAUTION - When the machine is connected to an air suppl
y
and first turned on, both the Snap Folders and compression
press will c
y
cle once. Be sure all personnel are clear of the
machine when starting.
!

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 5
65-07-6 3/6/2007
The BEL 270 is equipped with an electrical air supply and dump valve controlled by the on-off switch circuit.
Switching off the machine will exhaust compressed air in the machine circuit. It also has a combined filter /
regulator / lubricator (FRL), which should be checked daily to ensure that the lubricator reservoir is filled, air
pressure is regulated to the proper setting, and that any water is drained from the filter.
MACHINE ADJUSTMENTS
There are six basic adjustments for size changes (refer to figures 1 & 2 below):
1. Box width adjustment – use the side mounted hand crank to move both side belt conveyors and top flap
Snap Folders in and out to fit the width of the box. ( Refer to 1.4.1 )
2. Box height adjustment – use the top hand wheel to move the machine head assembly up and down for
proper operation of the Snap Folders and place the center ski is close to the top of the box. (Refer to
1.4.2)
3. Center ski adjustment – use the lock handle on top of the ski to adjust it toward or away from the
machine in-feed depending on the case flap length. ( Refer to 1.4.3 ).
4. “Folder” [Snap Folder] Dwell Timer Control [Controls Enclosure] – controls the Snap Folder on-
delay time. The folder needs to be actuated long enough to direct the major flaps past the top glue gun and
under the flap guides on either side of the compression press.
5. Glue pattern adjustments – the length and interval of the glue bead pattern can be adjusted by
repositioning the glue limit switches on the conveyor cover and adjusting the glue timers in the controls
enclosure. (Refer to 1.4.5 ).
6. Hot Melt Glue Unit – Refer to operating instructions included with the hot melt unit.
CAUTION: Shut off the machine before making adjustments.
!
Electric Air Supply/ Dump
Valve
Filter/Regulator
Lubricator

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 6
65-07-6 3/6/2007
ADJUSTING FOR BOX WIDTH
Place the box between the conveyor belts under the center ski with the minor flaps folded. Use the side
mounted hand crank to wind in the drive belts until they lightly contact the case sides. Remove the box
through the infeed and wind the belts in by a further one half turn of the hand crank. This adjustment also
automatically moves the Snap Folders in to the correct horizontal position for the box width.
ADJUSTING FOR BOX HEIGHT
Using the handwheel shown in the photo below, wind the center ski downwards until it is above the folded
minor flaps by 1/8”. The Snap Folders will now be positioned at the correct height for flap folding.
NOTE: Depending on case fill, weight and dimensions, it may be necessary to make minor
adjustments to the settings for the best performance.
Center Ski
Drive Belts
Snap Folders
Hand crank can be
mounted on either
right or left side
Hand Wheel – Turn Clockwise to Lower
Machine Head Assembly (Snap Folders, top
glue head and compression press) for a shorter
case,
Turn Counter-Clockwise to Raise Machine
Head Assembly for a taller case.
Height Adjustment Lock

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 7
65-07-6 3/6/2007
ADJUSTING THE FRONT MINOR FLAP CENTER SKI
As shown above, the center ski, which serves to fold down the front minor flap, is mounted on a slotted
bracket. The slotted bracket permits the ski to be adjusted forward or away from the machine in-feed. The
ski is preset at the factory in such a way that the machine can handle a variety of box sizes without frequent
re-adjustment.
The length of the box minor flap determines the adjustment, which usually is a function of box width. When
running boxes that are at or close to the machines minimum and maximum width limits, or boxes with
different flap lengths (i.e. flap cut boxes), it may be necessary to adjust the position of the ski to ensure the
control of the minor flaps.
For boxes that are close to the minimum width, the ski should be adjusted forward, toward the in-feed. This
will ensure the rear minor flap does not spring open before it reaches the ski.
For boxes that are close to the maximum width, the ski should be adjusted in the opposite direction so the ski
does not interfere with the rear minor flap as the Snap Folders fold it.
To run the broader spectrum of box widths that are closer to the machines average width capabilities, the ski
should be set at the midpoint on the mounting slots.
ADJUSTING THE HOT MELT GLUE UNIT
The standard BEL 270 is equipped with a Nordson 3400 hot melt unit. Customers may specify other units. For
detailed instructions, please refer to the operation instructions supplied by the unit manufacturer.
ADJUSTING THE GLUE PATTERN CONTROL
Glue pattern timer settings and limit switch positions are preset at the factory to known customer requirements. If
further adjustments are needed, the machine and glue timers are located in the control panel enclosure. Please
refer to the following diagram as a guide to adjustment.

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 8
65-07-6 3/6/2007

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 9
65-07-6 3/6/2007
OPERATING THE MACHINE
STARTING THE MACHINE
On the standard BEL 270 machine, the “Main Power” switch is on the Control Box. It must be turned “ON”
before any of the other controls will operate.
Glue “On/Off” and press ram “Up/Down” controls are located on the side of the main controls enclosure
facing the rear or out-feed end of the machine. These switches illuminate when the machine power is on and
the function the switch controls is active or ‘on’ for automatic operation
The “Start/Stop” switch control station is on the center of the arch for easy access from either side of the
machine.
To start the machine, press the green “Start” button on the switch control station. Use the red “Stop“ button to
stop the machine.
Use the lighted switches on the control enclosure to turn “On” or “Off” the glue application or to control the
compression press ram independently.
CAUTION - When the machine is connected to an air supply and first
turned on, both the Snap Folders and compression press will cycle
once. Be sure all personnel are clear of the machine when starting.
!
“START” “STOP” Supply Power
“ON” Indicator
Light
Glue -
“ON/OFF”
Compression Press
Ram
“UP / DOWN”
Override Switch
Main Power
“ON/OFF”

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 10
65-07-6 3/6/2007
FEEDING CASES TO THE MACHINE
A powered infeed conveyor belt is the preferred method of feeding cases into the BEL 270 although gravity or
manual feed may also be used. Note that cases must enter level with the BEL 270 conveyor and not be tipped
forward or backward or there will be problems with top flap folding and sealing. For powered infeed conveyors a
speed of 60 ft./min. or less is recommended.
NOTE: The in-feed conveyor speed MUST be less than the BEL 270 standard conveyor
speed of 85 ft./min. A recommended speed is 60 ft./min. or less.
AUTOMATIC STOP GATE
The BEL 270 is equipped with a timed automatic stop gate, which separates or indexes cases as they enter into the
machine. The standard indexing gate is mounted inside the machine frame and operates in a normally down or
open position so that the first case in a sequence moves directly into the machine. The logic can be changed so
that the gate is normally up or closed which aids in squaring the case, if necessary, before it enters the drive belts.
The timing of the gate is controlled by a timer in the main controls enclosure. Stop gate actuation is usually set to
be 3 to 5 sec. It must be set at least 0.5 sec. longer than the Snap Folder (return) dwell time.
An optional external indexing gate that mounts on the front of the machine frame can be used for longer cases that
will bridge the gap between in-feed and machine conveyors and which must be used in place of the standard
internal stop gate with the machine over-length case modification. The externally mounted indexing gate is also
wider giving it better ability to square cases that may be skewed before they enter the case sealer.
Automatic Stop Gate shown in
“UP or “CLOSED” position

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 11
65-07-6 3/6/2007
SERVICE AND MAINTENANCE PROCEDURES
UNI -DRIVE SIDE BELT DRIVE SYSTEM
The Uni-Drive side belt system was designed to keep the case square during sealing. It provides a technically
stronger seal and a better-looking appearance than other belt drive systems in the market.
In the Uni-Drive system, both belts are linked to a single motor/gear unit by a continuous loop of #40 pre-
stretched machine chain. Chain tension is automatically maintained during case width adjustments by a self-
compensating serpentine chain configuration.
CHAIN DRIVE MAINTENANCE
Chain tension is preset at the factory. If an adjustment is needed, only adjust the Chain Tensioning Sprocket.
Proper tension is achieved when the horizontal sag in the chain measures between 1/8 ” and 1/4 ” with drive belts
in a fully opened (maximum width) position.
The chain should be lubricated with a spray type ‘Moly’ chain lubricant once every 100 hrs of operation. Lift the
flexible bellows cover and spray the chain through the slot in the stainless steel safety covers underneath.
For full access to the chain drive, remove the stainless steel safety covers by unfastening the screws attaching
them to the machine frame cross members.
SAFETY: All drive covers must be replaced prior to restarting the machine.
CAUTION: Disconnect all electrical and air supply lines before
performing any adjustment or maintenance on the machine.
!
Chain Tensioning Idler Sprocket - ( Release the
underside bolt, tension chain and re-tighten. )
Drive Chain Serpentine
(shown with top covers
removed)

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 12
65-07-6 3/6/2007
Important: Do not remove or reposition the clamp collars on the cross width adjustment screw as these are set to
prevent the sprockets from contacting each other and/or to protect other machine components.
The optional BEL 270 Spare Parts Maintenance Kit contains all of the parts necessary for maintaining the Uni-
Drive system. Contact the factory or your local Belcor Distributor for further details.
GEAR REDUCER MAINTENANCE
Worm gear reducers and gear motors should be inspected regularly for evidence of oil leakage, noise or vibration
to ensure maximum performance and service life.
Check for the following.
• OIL LEAKAGE – Check oil fill and level plugs and housing bolts, tighten if necessary, replace oil seals if
required.
• OIL TEMPERATURE - Check reducer for higher temperatures than normally encountered and that are not
caused by a rise in ambient temperature. Possible causes are low or high oil levels and abnormal machine
loading.
• SOUND LEVEL AND VIBRATION - A change in sound level or excessive vibration can indicate low oil
level, abnormal loading or worn components.
• DIRT ACCUMULATION - Excessive accumulation of dirt or grease will affect the proper cooling of the
unit.

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 13
65-07-6 3/6/2007
SIDE DRIVE CONVEYOR BELT SYSTEM
The conveyor belts can be easily replaced with a minimum of down time. We recommended replacing both belts
at the same time.
The procedure is as follows:
1. Remove the stainless steel safety covers.
2. Under each conveyor beam, loosen the belt tension and alignment locking bolt on the side of the bracket
facing the center of the machine.
3. Release the tension on the belt by loosening the upper and lower adjusting nuts until the belt can be removed
from the pulleys.
4. Fit the new belt.
5. Reset the belt tension using the upper and lower adjusting nuts. Alternate tensioning of the nuts to position the
belt so that it is running true and not trying to ride up or down on the pulley. The tension on the belt should be
just enough to keep the belt from slipping or so that approximately one inch of play is available when the belt
is pulled sideways by hand in the center of the belt.
5. When correct tension and tracking are achieved, retighten the lock bolts.
6. Replace the conveyor covers.
SAFETY: Conveyor covers must be replaced before restarting the machine.
Above shows side belt conveyors
with stainless steel covers
removed. Belt Tensioning and Tracking
Adjustment Nuts
Belt Tension and
Alignment
Locking Bolt

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 14
65-07-6 3/6/2007
SNAP FOLDER ADJUSTMENT
The function of the Snap Folders is to integrate the folding of the case minor and major flaps within the shortest
possible time and travel distance. In each Snap Folder module, the rear minor flap and major flap folders are
activated through a single mechanical, progressively linked drive system powered by a pneumatic cylinder.
The right and left Snap Folder modules are secured to their respective mounting brackets with three machine
screws into the top face of the folder body. The modules can be removed for servicing, if necessary, after
disconnecting the air supply lines.
To service each module, remove the stainless steel face cover. All of the parts required to service the Snap Folder
are contained in the standard BEL 270 Spare Parts & Maintenance Kit (BELCOR Part number 70-225).
After replacing any worn parts, it may be necessary to reset the Snap Folder Exhaust Flow Valve (seen below)
located outside the housing at the rear end of each module. The purpose of this flow control is to regulate the
speed of the minor folder ‘hook’ so that it employs a following action to fold down the rear minor flap. This
should be set to operate as quickly as possible without striking the case flaps prematurely and damaging them.
A timer, housed in the main control enclosure usually located on the left side of the machine, determines the
length of time that the Snap Folder mechanisms dwell in the forward position. This ensures that the flaps do not
spring open before they are captured beneath the flap guides ahead of the compression press. This timer is factory
set and should not need routine adjustment.
The return stroke of the folder is regulated by a built in flow control on the Snap Folder solenoid valve located
with other valves under the machine frame adjacent to the air regulator. This control is only for mechanism return
velocity and is used to reduce noise and wear.
Snap Folder Cylinder
Exhaust Flow Valve
Adjustment
(Actuation speed
control)

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 15
65-07-6 3/6/2007
TROUBLE SHOOTING GUIDE
SECTION 1 - CORRUGATED CASE QUALITY & SPECIFICATIONS
Corrugated case quality is a major factor in smooth running and quality sealing.
1. Check your case dimensions to see that the products fill the case efficiently and do not bulge, over-fill or
under-fill the case. Re-sizing of cases can often result in cost savings by using the correct box size and
material weight. Consult your corrugated supplier, for help to achieve this. A correctly filled box will help the
automatic process by supporting the case body during flap folding and the top flap sealing.
2. Make sure that all scores (fold lines) on your cases are well defined to help with the automatic folding
process. Your corrugated case supplier can help with this by making sure that correct scoring pressure is used
for your case specification. This is one of the most common causes of poor case closing performance
3. Corrugated case weakness is often an area that needs quality control. The fluted construction of corrugated
board can be impaired by various factors in the corrugated box manufacturing process. Points to watch for:
a. that the flutes have not been crushed overall, causing the box to have a ‘soft’ and limp feeling. This
causes poor case rigidity during machining and also does not give your product the protection it
deserves.
b. selective bands of crushing, usually parallel to the box flutes that can cause failure lines down the box
and result in poor machine handling performance.
c. case storage, flat cases should be stored in dry conditions and on a flat surface. Be careful not to
stack excessive weight on to the cases as crushing can result.
4. Check the ‘squareness’ of cases. The glue joint where the manufacturer glues the flat case together often
can present a quality problem by being misaligned. It causes the case to be wider at one end than the other or
to be twisted from end to end. Both conditions can cause case jams and poor sealing quality.
5. Corner slots in the case should be wide as possible so cases can be automatically folded with a minimum of
interference between major and minor flaps.
6. Overlap or gapped case flaps can be a result of incorrect flap lengths. Fold the box by hand to see that flaps
meet neatly in the case center.
Use your corrugated case supplier’s expertise to help you achieve the correct specifications for your automatic
sealing line.

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 16
65-07-6 3/6/2007
SECTION 2 - CASE DRIVE BELT SYSTEM – BEL 270
The Uni-Drive side belt system is designed to keep the case square during sealing which results in a stronger seal
and a better finished appearance.
It works by linking both side belt drives to a single motor and gear reducer. In the Uni-Drive system both belts
are driven by single continuous loop of machine chain.
PROBLEMS CORRECTIVE ACTION
Case Is Not Sealing Squarely • Check that case is square before it engages in the machine conveyor
belts.
• Check that side belts are correctly adjusted to case width:
1. Adjust the belts until they lightly contact case sides, but so that the
case can still slide through the belts if firmly pushed.
2. Remove case and tighten belts one half turn.
• Check that belts are correctly tensioned and that neither belt is slipping
on the drive pulley.
• In the case of round cans or bottle type products check that belts are set
to grip lightly but firmly on case sides. Excessive side pressure can
cause round objects to roll ‘over center’ and distort the off-square.
Depressed - Crushed Band on
Lower Case
• Check for excessive side belt pressure.
Rubber ‘Dust’ Being Shed by
Belt
• Check that conveyor width adjustment is set so that boxes are gripped
securely and propelled into the compression section of the machine with
enough momentum to clear the belts and move the preceding box onto
the out-feed conveyor.
• Sealed cases must be conveyed away from the machine and not allowed
to back up and add resistance to case movement inside the machine.
• Check that belt tensioning and tracking adjustments are correct. Note:
too much tension can cause premature belt wear and possible belt
breaking. (See section on Uni-Drive)
Rattling Noise From Drive Train • Although pre-stretched chain is used in the machines, the chain over
time may loosen and rattle on the drive cover. Tightening the idler
sprocket can rectify this (see maintenance section on Uni-drive).

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 17
65-07-6 3/6/2007
PROBLEMS CORRECTIVE ACTION
Frequent Belt Breakage • If a stepped-splice belt is used, check rotation direction of belt.
Finger-spliced belts should not be sensitive to direction.
• Over tensioning of belts - correct setting allows approximately one
inch of slack at center point of conveyor belt.
• Check to ensure idler and drive pulleys rotate freely.
• Check to ensure idler pulley has camber set for correct belt tracking.
Machine Jams Frequently • Turn off machine as soon as jam occurs and prior to clearing jam.
Open Belts and raise head, remove jammed case and debris. Check
for jam causes:
1. Belts set too tight causing machine overloading.
2. Product is overfilled or inconsistent causing intermittent jams.
3. Top folder height is not set correctly; flaps subsequently hit the
top ski or other mechanism.

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 18
65-07-6 3/6/2007
SECTION 3 - TOP FLAP FOLDING – BEL 270
All BEL Machines that automatically fold the top flaps of cases use the unique Snap Folder system.
The function of the Snap Folders is to integrate the folding of the minor flaps and major flaps within the shortest
possible time and travel distance. In each Snap Folder module the rear minor flap and major flap folders are
activated through a single mechanical, progressively linked drive system powered by a pneumatic cylinder.
PROBLEM CORRECTIVE ACTION
Rear Minor Flap is not Folded-
in • Make sure that the Snap Folder modules have been correctly positioned
for box width and depth.
• Check that air to machine is turned on.
• Check that Snap Folder modules are operating.
• Be sure that box is tripping the Snap Folder actuating switch at the
machine in-feed.
• Check to ensure air pressure is maintained at correct machine setting, and
that adequate air volume is being delivered consistently. Lack of air
pressure and/or volume can result in poor flap closing performance.
• Check operating speed of Snap Folders. If speed is set too low the rear
minor flap folders will not be activated quickly enough to fold the rear
minor flap or rear flap may spring open as box emerges from under the
minor folders. Consult Snap Folder maintenance section for procedure
on adjusting flow control speed regulators.
• Check that the scoring of case flaps is adequate and that they will bend
easily and cleanly.
• Be sure that overfill is not excessive.
• Flaps shorter than three inches may have to be run on a modified machine
Rear Minor Appears To Fold
and Then Releases and May Be
Turned Backwards or it hits the
top ski
• Check that the top ski that controls the minor flaps is set in correct
position for RSC cases:
• very narrow boxes – ski should be set forward to the front of the
adjustment range to catch the smaller flap before it can pop up
again after folding
• mid width boxes - set to the center of the adjustment range
• very wide boxes - set back to the rear of the adjustment range to
provide room for the larger flap to fold down without hitting the
ski
Note: this adjustment is used for extremes of case size range, and should
normally be set in the middle position.

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 19
65-07-6 3/6/2007
PROBLEM CORRECTIVE ACTION
Rear Minor Flap Does Not
Fold and Back of Box Caves
Inward
• Check if back panel of box is supported by the case contents. If it is not
supported, then the minor flap may not fold on its score line. To remedy,
improve the case fill or reduce case dimensions. Pre-folding of the rear
minor flap can also help if it is practical to pre-fold before the case enters
the machine.
Top Major Flaps Bind On
Center Ski • Check that excessive side pressure has not been put on box causing flaps
to bind on vertical side of ski.
• Check that top ski or glue head are not misaligned and are centered
between the belts and the Snap Folders.
Top Major Flaps Have a Gap in
Center • Check the case is correctly sized for contents.
• Check that the side rollers are in a position to squeeze the top flaps
together in the compression section of the machine.

BEL 270 FULLY AUTOMATIC HOT MELT GLUE CASE SEALER 20
65-07-6 3/6/2007
SECTION 4 - CASE INFEED AND INDEXING – BEL 270
Feeding in of cases is an important issue in the efficient operation of automatic case closing.
In-feed conveyors should be level and horizontally aligned. The cases should remain level and not change
elevation when pushed or powered into the machine. The side belts will grip and hold the case in the same
attitude as presented into the machine in-feed. Cases not level or at an angle will cause machine jams or poor
closure quality.
Case indexing provides a gating function that ensures cases enter automatic sealing machines are separated from
each other to prevent jams. This function is particularly important when there is an accumulation or backlog of
cases on the in-feed conveyor.
The indexing gate is in the normally down [open] position allowing the first case of a series to enter the machine
directly. As a case enters and releases a limit switch, the gate raises and prevents another case from entering the
machine for the period set on the stop gate timer.
If the “squareness” of cases entering the machine is a problem, the logic can be changed to have all cases,
including the first, stop before entering the machine. Although less efficient, it provides some assistance in case
squaring when the moving case strikes the gate. Contact the factory for the procedure to change the gate logic, if
necessary.
PROBLEM CORRECTIVE ACTION
Two cases are in machine at the
same time and cause a jam. • Check that the gate has power and is working.
• Check that the timer is set to a sufficient interval to permit proper
separation. Timer T6 located in the main control box controls the stop
gate dwell time.
The case is slow entering the
machine or does not enter at
all.
• Check that air is turned on and pressure and volume are correct.
• Check timer setting (as per previous point).
• For a normally up or closed gate, check that front of case is contacting the
switch that is ahead of index gate. Failure of the case to adequately
depress the switch will cause gate to remain up.
TECHNICAL REFERENCE INFORMATION: Please see Publication 66-07
Table of contents
Other Wexxar Industrial Equipment manuals
Popular Industrial Equipment manuals by other brands

CMCO
CMCO Yale HTP 500 operating instructions

CARLO GAVAZZI
CARLO GAVAZZI Dupline Design and installation guide

MyBinding
MyBinding ISP N3B Series instruction manual

Wacker Neuson
Wacker Neuson AR43 Operator's manual

Siemens
Siemens SIMATIC NET SCALANCE MUM856-1 operating instructions

Baruffaldi
Baruffaldi CE Series Use and maintenance manual